What is true faith and what's fakery is a question that runs through Polish director Jan Komasa's slow-burn drama Corpus Christi, its dark intensity channeled in a dynamically physical, wild-eyed performance from talented young lead Bartosz Bielenia. Themes of salvation and sacrifice, damnation, retribution and redemption will make this too Catholic for some art house tastes, and the overlong film becomes draggy and lugubrious in patches. But there's visual command and a compelling intimacy to the storytelling, plus intellectual engagement in the reflection on who gets to claim nearness to God.

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